Crayon for marking textile materials and the like



em l 1 22398559 1 [Ultimo/ STATES o 1 can on FOR mama mm x 3 'rnn-uxn i aaaimorto L w rneffiflfiq m flfi i! i No Drawing. Application June mm 1 xiSerial No. $9 2,413

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inventionrelateeto crayonior marking Anotherobjectloifmxfiillllfi lt bnnls,ztqf myld 1 textile materiel and'the like and isvacommuaig cmyn=qforimarkin=ilm wmkifinaefl ective tion+in'-part of my co-pendina application, Serial dispersine aaent. no. 392349. While its is noflnecessarily n Qtherx o jects wilibe; in part tobvlpua or ited to ciothifor the purpose or illustration -the e pointedicut hereafter; l invention will be descrihed-hereinin connection @.;Theinventionaccording icons tsfllin .t

with its applicationtocloth." l H1 Crayon is extensively employed at various initheisevetal stepsifzandurelatioziiendiiiorderij stages in "the'menuIacture-ot yam andclothyfor each; 01 ai said stcps tqzione pnfim'ore ofthejothers marking the cloth toindicate imperfectionsf etc I" thereon all as will beplw n edxoutin thetiollowendfor marking wound-"bobbin to indicate the ing description;andithefscope ortherapplication t nature of the twist or the yarn," the combination -oI, which1 willjbe indicatedin theioimwinkdaimsl oi threads ete, diflerentcolorsfbeing-used sin: qAccordina-to myinvention Irmaken brawn, dicators oi various conditionsl j E with oruwithoute ibinder such tori exampleglasi Obtaining suitable cray'n iorjsuch purposes zhlqerine; employingmamater i persibieqlcolor has always presented a problem. It is desirable carrier, thegdesiredzdye water.iandwsetfphosphatez thatthe crayon be strong and durablejso that it salt. empioy thephosphat Sa1t D1'iIfi9. Ii1y;- 8.S 2i; willnot" crumblewhen al lllied,- to cloth bfyarn; 1 water di persing agent; 1 Ixhaveetound that? by; l for ample, but will make a markwhichis learly employingaphoaphate"saltitl am able ltoi obta'in a discernibles- At the sam'e time ithighly crayon "of suitable strength and durabilityflfon l portant thet the crayon be readily removable practical which will; mark" the icloth without h Fer or-cloth; CraF Ds'hG il zlam hand which markscloth or yam with a able fol-marking textile materiaior theiikeliave depdsitwhich will not be fse fjinto the cloth, but not combined these attributes ina setisfactory which "will be readily mailed from thejcloth 'binationa of elements, arrangements of pa jltsgandl f i i Some crayons soonglaizeover endjbeconieeirlow the application of the .crayonmarks to the trer'nely' hard, and thus iailto make aclearlyfdis: clothoryarnh. 5; cerniblemark. LI nreier toyusea phosphate salt whichis lightlm nici'ayons, whenwetted bywater or steam, alkaline, sucmm exarnnlerasldipotassiun phosset into the fibers or the yarn or cloth and can Phebe, or diodlum:phosphate: tosefiefhotli thereafier be removed only with great difficulty, a View; agen an and iffnot removedbeforedyeing they cause natural acidity ofsome nhers suc even dyeing. Since, in the manufacture of texr r'jexample; to prevent chemical reactiodbetile material and the like the cloth or yarn which V tween dye and the fibers during steaming. It has been marked with crayon is regularlysub I will hrs-understood however that a. nonalkaline jected to the steps of (1) steaming, (2) scouring, phosbhat'esaltmay be used and a small amount with'water and soap, or chemicalebath, and (3); of alkalinematerial, such, iorie xamplem sodium rinsing, it will be understood thatthe-w narlrs or carhonate or sodium hydroxide added separately such crayon present a serious practical problem; toovercometheeidresaidnaithrhihflinitior s6 An object of my invention is tOgDlOYidBf-f, flhersutdr acid tbl fqvideja mediuriijadap fective anddurable'article of the above mentioned" for most effective action of the seiduwateifdis kind and a simple method or makingihe same. persingfagentfi "Itis simpler. alld ithe rfdi-if Another object of myinvention" is to provide erable to .get both the dispersing action and the a crayon which will b readily e er so u le, 5 desired degree of ,alkahnitm fromWaWsinglewsub-i An r" o j t of the i n o ism Pro ide a stance, but obviously if a less alkaline phosphate crayon which may be used for marking cloth saltis used, such, Ior'example, as a. mono-phosduring the various stages *of themanufacture of phqt fselt its alkalinity meyh supplementedby yarn and cloth, the marks of which will beljfrethe addition of a small amount or a mild alkaline moved fromjthe cloth during the usualsteps' loi material"such"as sodium"hydroxide;" and thus e m nt whi h 1 lP 9 I F l h? Ill-$01M h s h e salt is fifidwwhichhessomee r ym h cloth or ram 3 j 4 whatgreater aikaiimtyismrirferih; fAnotherobiect, O! the invention is prb y ide for example, asa tripotassium salt,its;alkalimt crayonwh chjwili mjarlrclothpincluding wool mayib reduced toth extentl desired biiit a and worsted cloth, without glazing, and without 55 ditionof an acid material which wil1-not 'inlure fsettin'g into theclot h.

v l i the cl0th,such, ior'exampiegws acetlc"orio mi n her obiectof my invention is to provide a qreny organic acid. l h strong, durable wetersoluhle crayon which does Thephosphate salt s ould be se flicient;

not necessarily require the useof a binder: such volume to readilmdisperse thecoiorfce r e mt aeglycerine or its equivalents. w

. it an alkalizing agentls employedgigltishouldmbel 2 limited to an amount, say 0.5% which will not increase the pH value of the composition to an extent such that it will'destroy the dye used or inbining bentonite with another color carrier I prefer to use approximately 10% to 20%i'of bentonite and from 80% to 90% of a-color carrier such as ticular ingredients selected. For example, in comjure the fabric. infusorial earth.

I have obtained very satisfactory results em- 5 In making my crayon I dissolve the desired dye ploying the following formula: a in a small quantity of water. To the solution thus formed I add the selected phosphate salt, the alpmpomons kalizing or acidulating agent, if one is used, the Ingredients e gi g:- binder, if one is used, and I prefer to add a prea servative, such, for example, as sodium benzoate. I place this mixture in a high power mixer and VAIOOIOIOBIHBIZBBHMHRG,17r-10%;inlll80l'ill1@fll, Percent then add the color carrying material, and the 5;

water, and thoroughly mix the ingredients, which t irfiierffifnflijjj::::::: 40-150 may require a proxim el n -h f r.

' [6 when the mixing operation is completed, I I have, found that m the above stated f nnula transfer the material into suitable mo ds, or eject I do not need toem'ploy a binder such as glycerine it, Preferably in cylindrical a suitable or its equivalents, forming machine, an cut it to desired lengths. Instead of the diwalent phosphate salt a mono, The molded material I then place in a suitable valent or tri-valent salt may beused and an al- 20 $53 g g g g 2222322 3; gjf gg g stated g mfm agent added as requkgd' as ably according to the dryness desired of the fin- Instead of the combination of bentonite, inlshed pmduch Thus the drying may Vary from 80mm earth md clay I my use any other Sm one-half hour to four hours for crayons dried able-water dispersing color can-yin: material, 5 down to-from seven to sixteen percent moisture. such for 2 example, as clay, or fuller's earth, or The 1111mm earth e r m W than either of them combined with benmmte, or fullers earthor clay, for example, to bring it into 1mm earth. and I may use human such for condition to combine-with the other ingredients. example. as one selected from a grup'mpfls 1 The proportion of water should therefore be varing glycerin, the glycol, and meme or (glycol led in accordance with the amount of lnfusorial stearate. Thus combinations illustrated by the with following formulae, andin which the relative pro- In empbymg 9 stem as a binder m at mixed we" are merely mm illustrated in the above formula, I combine ditrame and can be widely "fled. may be glycol steal-ate andwaterinthe approximate proployed. 85 portion of 90% of diglycol stearate and 10% of 7 water, and add this combination to the dye solution. I then add the water dispersing agent, and 3 3; after placing the mixture thus formed in the mixof color car: er I add the color carrying material or materials, 40 and a volume of water based upon the weight of the color carrying material. W: Ihave found that not all colors are satisfactory Water 4o to70 for use in making my improved crayon due to gag .33; the fact that many of them, after being incorpo- Dlpotusiumpholpbaie. lm a rated in a crayon, change color when the crayon -W 5 is dried. 1 have found that the following water soluble color may be employed in the manufacture of my crayon with very satisfactory results. In a m'itfli' of combined Selected colors s? Anselm-carrier: momma bentonlto (co-10)-- gi$iffl E 5 Water 40 to 10 Caloozlne-RedB 843 C910, 0. 2w 0.0 Oslcoeid Milling Yellow 181 PR i ts ssium phosphate i i: ?Lf$s n g 5; name'- am 0.15 r

I do not limit myself to these colors but cite I la g gg them merely as colors which are now commer- Ingredients emmiil cially available and which I have used and found color a satisfactory; 7

It will thus be Seen that there has been pro- I a I 4 P" m 5 vided by this invention a method and a product Ahmmtmm ma dgy 4 in which the various objects hereinabove set gm: g 8 forth together with many thoroughly practical mm 5' t 15' advantages are successfully achieved. As various blpotwglm o m- 5 :3 3 5 possible embodiments might be made of the features of the above invention and as the art here- ,g 7 in described might be varied in various parts, all In combining two or more color carriers in the without departing from the scope of the invensame formula the relative proportions may be tion, it is to be understood that all matter herevaried for optimum results, depending on the parlnbefore set forth is to be interpreted as illustra- 76 tive and not in a limiting sense.

and sodium phosphate in an amount within a range on the order of from'1%-10% of the weight 1 WhatIclaimis:

1. The method of making a crayon which com prises mixing a water dispersible color carrier,

1 selected from a grou consisting of clay, fuller's earth, iniusorial earth, combinations thereof and mixtures thereof with bentonite, in a water solution with a phosphate salt selected from a group consisting o! potassium and sodium phosphate,

adding sufficient dye to give the desired shade, and drying the product to the desired degree of hardness.

2. 'I'he method of making a crayon which com prises mixing a water dispersible color carrier, selected from a group consisting of clay, fuller's earth, infusorlal earth, combinations thereof and mixtures thereof with bentonite, in a water solution with a phosphate salt selected from a group consisting of potassium andsodium phosphate'in a proportion of from 1%-10% of the weight of the color carrier, addingsufilcient dye to give the desired shade, and drying the product to the desired degree of dryness.

3. The method of making a crayon which comprises mixing a water dispersible color carrier selected from a group consisting of clay, fullers earth, infusorial earth, combinations thereof,

and mixt-ures thereof with bentonitawater in an amount within a range on the order of 40%-l50%' or the weight of the color carrier used, a phosphate salt selected from the salts or potassium of the color carrier, and color in an amount sufll clent to give the desired shade, and thereafter molding the material obtained as a result of the mixing operation and dryingit to the hardness desired.

4. A crayon comprising a water dispersible color carrier selected from the group consisting of clay, fullers earth, infusorial earth, combinations thereof, and mixturesthereof with bentonite, a phosphate salt selected from the salts of potassium and sodium phosphate in an amount within a range on the order of from 1% 10% of the weight of the color carrier, a binder selected from a group consisting of glycerine, the glycols, glucose, and diglycol stearate in an amount within a range on the order of from 5%-15% 0f the color carrier, and color in an amount suiiicient to give the desired shade.

5. A crayon comprising a water dlspersible color carrier selected from the group consisting of clay," fullers earth, infusorial earth, combine tions thereof; and mixtures thereof withbentonite, a phosphatefsalt selectedirom the salts of potassium and sodium phosphate in an amount within a range on the order of from 1%,-10% of the weight of the color carrier, and color in an,

amount sufilcient to give the desired shade.

ROBERT D. ROBINSON. 

